Is it damaging to the motor if my timing chain needs to b replaced

5

Asked by Feb 11, 2015 at 08:24 PM about the 2000 Pontiac Grand Am GT

Question type: Maintenance & Repair

I was told my car has an
interference motor which
could damage my engine if
it's not repaired properly

1 Answer

1,235

Yes it can. On interference engines the camshaft and crankshaft are timed to open the valves at certain intervals like all engines. What's make interference engines different is that if the timing belt or chain jumps to many teeth either on the camshaft gear or the crankshaft gear it can cause the valves to open to soon and hit the pistons. This would result in bent or broken valves and damaged pistons and possible damage the the cylinder walls. If this were to happen then the engine would need to be replaced, since rebuilding the engine would cost more in parts and labor. Hope this helps.

Your Answer

Pontiac Grand Am Experts

  • #1
    tenspeed
    Reputation
    7,790
  • #2
    John Saffrahn
    Reputation
    1,610
  • #3
    Tom Demyan
    Reputation
    1,530
View All

Related Models For Sale

Used Pontiac Grand Prix
32 Great Deals out of 2,709 listings starting at $1,491
Used Pontiac Firebird
11 Great Deals out of 776 listings starting at $4,300
Used Ford Mustang
694 Great Deals out of 37,655 listings starting at $895
Used Chevrolet Camaro
406 Great Deals out of 30,660 listings starting at $3,550
Used Pontiac Bonneville
3 Great Deals out of 526 listings starting at $1,799
Used Chevrolet Impala
524 Great Deals out of 34,034 listings starting at $950
Used Pontiac Sunfire
313 listings starting at $2,100
Used Chevrolet Malibu
1,055 Great Deals out of 70,545 listings starting at $2,499
Used Honda Accord
1,093 Great Deals out of 60,892 listings starting at $1,099

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.